It did that all the way home (12 miles).I let it sit overnight and started it up the next morning and the same symptoms of fluctuating rpm happened so I let it sit over the weekend. A few minutes would go by and then the check engine light would come on again and flash.
Trans , check engine etc... Have it checked for codes .

(This unit is a solid state unit. Your answer needs to include more details to help people.You can't post answers that contain an email address.The email address entered is already associated to an account.

Are there any Isuzu dealers in America anymore? Heres the diagnostic readout from autozone. The upper intake gaskets may be leaking. i had it … Have your ignition system check. If you want to get involved, click one of these buttons! After installing the tank and pump, I noticed the check engine light was not coming on when I turned the key to the on position. When the engine is started, the Check Engine light should turn off.. The mechanic hooked it up to read the error codes and surprise, there were none. When I press the gas, the check engine light flashes. Once it shifts everything seems to be fine, until today when the check engine light started flashing. While driving down the road one day, the vehicle just quit running. Or both could be good and my problem is somewhere else. That is where I stand. Connect white (test lead) and black (ground lead) wires that are branched from harness approximately eight inches from ECM. The engine RPMs will dip down from normal (1000) to about 200 and then go back up and back down when in gear. MIL - Check Engine: Warning Light Explained: The Isuzu D-Max MIL, or check engine light comes on when the ignition is switch to 'on' and should go out when the engine starts. Let me know what you guys think I should check next. (This unit is a solid state unit. light goes out when rpm is reduced. I Have Been Having A Problem For The Last 4 Weeks. are you checking code with a small simple scanner this will not always work, a larger more sophisticated unit may find code or runs codes at over 2500 rpms when light comes on The Check Engine Light Had Been On And Mechanic Told Me It Was A Computerized O2 Sensor That Didn't...I Got A “check Engine” Light On In My 2002 Isuzu Trooper After I Had The Timing Belt, Spark Plugs Fuel Filter And Fan Belt Replaced.

still safe to drive? What light is flashing ? This is a valid point because in some instances the car my check engine light comes on for a time the goes off for a while and keeps this cycle up. Usually when the check engine light starts flashing upon starting, it means the ecm has detected a cylinder misfire. check cat convertor and exhaust for blockages. After leads are grounded, the “Check Engine” light will flash the diagnostic trouble codes. When I press the gas, the check engine light flashes. What light is flashing ? are you checking code with a small simple scanner this will not always work, a larger more sophisticated unit may find code or runs codes at over 2500 rpms when light comes on


You can't post conmments that contain an email address. After market spark plugs could be the problem. Do not remove the cover on very top of manifold when changing. In the morning or afternoon when the engine is cold, it tends to lose RPMs or stall out after starting and putting into gear. To determine where the problem exists, ground the “Test” terminal of the connector with the ignition On, engine Off and watch the check engine light. This means I have to warm up the car in neutral for a while before putting it into gear, otherwise the car will not deliver consistent power or it will stall. Have a manual for